ELECTRONIC PAPER DISPLAY DEVICE WHICH IS ABLE TO ADJUST THE BRIGHTNESS OF AN ELECTRONIC PAPER BY CONTROLLING THE SIZE, WEIGHT AND ELECTRIC CHARGE OF AN ELECTRONIC BALL

摘要

PURPOSE: An electronic paper display device is provided to control the brightness of a display device depending on an environment by variously adjusting the rotational angle of an electronic ball arranged on each cell.;CONSTITUTION: An electronic paper display device comprises a lower substrate(10) having embossing patterns(20), at least one display unit(40), and an upper substrate(50). The embossing pattern is formed by: laminating a resin layer on the lower substrate; compressing the resin layer with a stamp on which an embossing pattern; and separating the resin layer from the stamp. The upper substrate laminated on the upper portion of the embossing pattern covers the display unit arranged at an inner side of a cell(30).;COPYRIGHT KIPO 2011